PVC-U Spiral Winding Pipe
PVC-U Spiral Winding Pipe
PVC-U Spiral Winding Pipe
PVC-U Spiral Winding Pipe

PVC-U Spiral Winding Pipe

PVC-U spiral winding pipe is made of polyvinyl chloride (PVC) resin as the main raw material, adding the necessary additives to form a mixture, plasticized and extruded into a PVC-U sheet with a locking structure on the outside, and then made into single-layer, double-layer and multi-layer spiral winding pipe by winding technology.

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PVC-U Spiral Winding Pipe
PVC-U Spiral Winding Pipe
PVC-U Spiral Winding Pipe
PVC-U Spiral Winding Pipe
Product Features Application Areas Specification & Dimension Performance Indicators

Product Features

  • 1. Impact resistance, friction resistance, no water leakage, stable performance, strong resistance to acid and alkali;
  • 2. Light weight, easy and convenient transportation, little affected by seasonal weather;
  • 3. Long pipe length, few and simple pipe connection;
  • 4. Good ring flexibility, allowing large deformation and uneven settlement of the foundation, ring force, allowing pipe-earth co-seismic.
    Flexible pipe, allowing large deformation and uneven settlement of foundation, ring force, allowing pipe-earth co-seismic;
  • 5. Surface roughness coefficient is 0.009, fast flow rate,and the capacity of water passage is 1.4 times more than that of cement pipe under the same pipe diameter and slope ;
  • 6. No pollution of soil and underground water source, the waste pipe can be completely recycled.

Application Areas

1. Unpressurized underground buried industrial sewage pipe;

2. Municipal drainage sewage pipes;

3. External drainage of buildings;

4. Rainwater collection and Domestic sewage discharge;

5. Expressway construction.

application

Specification & Dimension

DN
（mm）		 SN4.5 SN8 SN10 SN12.5 SN16
Min. average inner diameter  Min. average outer
diameter		 Min. average inner diameter   Min. average outer
diameter		 Min. average inner diameter    Min. average outer
diameter		 Min. average inner diameter    Min. average outer
diameter		 Min. average inner diameter    Min. average outer
diameter
200 / / 195 215 / / / / / /
300 294 313 294 319 294 329 294 329 294 337
400 392 417 392 427 392 435 392 435 392 445
500 490 525 490 533 490 543 490 543 490 552
600 588 631 588 641 588 650 588 650 588 661
700 685 738 685 747 685 757 685 757 685 767
800 785 847 785 858 785 867 785 878 785 878
1000 985 1057 985 1078 985 1092 985 1093 985 1101
1200 1185 1267 1185 1299 1185 1320 1185 1329 1185 1329
1400 1385 1529 1385 1529 1385 1529 1385 1549 1385 1549
1500 1485 1639 1485 1639 1485 1649 1485 1649 1485 1660
1600 1585 1749 1585 1811 1585 1811 1585 1811 1585 1801
1800 1785 2011 1785 2011 1785 2001 1785 2011 1785 2011
2000 1985 2211 1985 2221 1985 2211 1985 2231 1985 2231

Performance Indicators

Test Item Indicator Test Method
Ring Stiffness
(KN/m2)		 SN4.5 ≥4.5 GB/T 9647-2015
SN8 ≥8
SN10 ≥10.0
SN12 ≥12.5
SN16 ≥16
Ring Flexibility When the pipe OD becomes 30% of the
original under the external force,
the sample has no crack,
no delamination, no reverse bending		 GB/T 9647-2015
Vicat Softening Point/℃ ≥75 GB/T 8802-2001
Tensile Strength/MPa
（DN/IN＞300）		 ≥22 GB/T 1040.2-2006
Elastic Modulus/MPa ≥3000 GB/T 1040.2-2006
60℃ Oven Test 8h No delamination, no cracking
Dichloromethane Dip No change in internal and external surfaces GB/T 13526-2007
Safe Combustion Performance Extinguishes immediately on leaving the fire,
no melting drips
Falling hammer impact resistance
（TIR）		 ≤10% GB/T 14152-2016
Creep Ratio ≤2.5% GB/T 18042-2000
Oxygen Index ≥32% GB/T 2406.2-2009

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